End construction for tank-cars.



H. E. PARSONS.

APPLICATION milo Nov. 22. 1913.

END CONSTRUCTION FORYTIANK CARS.

1N VEN TOR.

A TTORNE Y WITNEssEs: y @im H. E. IARSONS. I END CONSTRUCTION FOR TANK CARS. APPLICATION mmnov. 22. |913.

Patented May 25, 1915 2 SHEETS-SHEET 2.

center*thereof.' Fig. 3 is a composite view,

UNITED STATESPATE OFFICE.

HARRYVE. Pensons; or Beswick, PEfNNsYLvAmAgnAssIGNoR To AMERICAN CAB-AND FOUNDRY COMPANY, or sT. Louis, MISSOURI, A Com'lona'rion on NEW JBSEY.

mm C'QNs'RUcT'IoN/ron Teambaas. i

specigaon 'of tenaisy Patent. i

Application me@ November 22 im. serial No. scam. i

To (illu-710m# may Concern Bel it known that I, HARRY E.P Aiisro1vs,`

residing at Berwick, Pennsylvania, andthe-y ingl a-citize'nof the United States, have in,-y

vented certain 'new and useful Improve ments in llnd AConstruction for Tank-Cars,

yof which the following is a full, clear, and

exact description, such as will enable others skilled 'in the art towhich lit appertains to make and use the same, reference being hady to the accompanying drawings, which illustrate the preferred form ot' the invention, though it is to be understood that the in\'en tion,` is not` limited to the Aexact details of construction shown anddescribed, as it is obvious that various modifications vthereof will occur to persons skilled in the art.

`in saidldrawings: Figure l is a plan View,A of an endportion of a tank ca r, embodying,r rthe principles of iiiy invention, a part of the tank being shown in section to the left of the center line and being omitted at the right thereof. Fig. 2 isa vertical longitudinal section ot saidy end portion, on a fplane substantially Vthrough the transverse showing. at the left an end elevationl of'a portion ofv the tank cai, and at the right a 3 `vertical transverse section taken along line 3T3 oli Fig. l, Fig. -tisfan elevation of the .'iiiner'ei'ul ofl one of the unitary end castings contributing to the attainment ofA the objects hereinafter set forth, and Fig. 5v is a detail fragmentary view illustrating a method of connectingv the ruiming board v tol the unitaryi end casting.

As is well understood in the art of rail-- built which shall possess this advantage. .v

" rlower posit-ion than is usual, and the car. as

v end construction, however, is not limited to unitary castings, as it is obvious that struetural shapes or .pressings may be assembled together to give the same result, and that longitudinal side and center sills may be included to connect the" end construction,

together with whatever additional tank sup- 'porting means may be deemed advisable.

Another object is the utilization 'of the 'atented Mvay`2l5, 19.15. l

unitary -end castings to form partsof thef` tank, aswell asto operate as a supporting means therefor, the associa-'tion ofthe tank sheets with the unitar castings being such' that the tank as a who e is thoroughly sealed 'against leakage.

`The top of the tank may, ifdesired, remain 'at the usual height, and, by reason of the bottom thereof being nearer the top of the rails than is customary, a lower centei` grayity maybe obtained and a greater ca` paeity for a fluid lading will result.

A further object is the anchoring of the `tank aty its ends by reason of the intimate relation between the tankv sheets and the unitary end castings, whereby batting stresses 'affecting the` stabilitiv ot the tank.

Vand lateral thrusts wiil beprevented fromA lt is further to' be'noted that, while the I (.-iiiistruction is rugged and strong, its manufacture is relatively inexpensive.

Referring now to the draWings'fA is thev centi-alor intermediate' portionof a metal tank, comprising the usual lapped cylindri- `cal sheet plates 13 a curved bottom sheet 1,

` Sheet tank heads 2 and chordaltank end bottoni plates 3 of the unitary 'end castings 4. But one end of the ,tank car has been illustrated, the opposite end being identical with that shown, and the intermediate portion being merely a continuation of whatis disclosedin the various figures.

"Eachy supporting unitary end` casting 4 vpossesses a ehordal tank bottom plate 3,

which isilocated in a higher plane than the major portion of the curved bottom sheet l, and is so formed astorelleet an indenture at each end of the middle portion of said tank', whereby the tank is enabled to occupy a.

a whole acquires a low center of gravity. Said bottoni plate 53 is outlined by upwardly andV outwardly inclined longitudinalv iianges 5 and a transverse end iiange'.

The flanges are integrally formed on the casting, and 'those longitudinally disposed are curved to agree with the curvature of the convex surface of the end'tank sheet B with which they are associatedvflransverse flange 6 inclines upwardly and outwardly and is curved to conform to the lower edge of the tank head 2. I

At their inner l ends, the longitudinal 5 flanges are connected by an integral arcuated flange 7 to which is secured one end of the tank bottom sheet 1. In ordinary practice, the bottom sheet extends the entire length of the aggregated lapped tank plates B, but, in'A` o the. tank car shown, each end tank vplate B .thereof is closed on its under side by the Ye end casting 4.v

y its lo'weredge merging' with the arcuated liinge Land results in an inclined segmenteshaped .lapped lmiformly4 curved lsheets B, tank i g head sheets 2, segmentallycut away on the lfthe sheet metal plates and theiunitary castg s,fwl1'ch ma f be riveted togetherv'and 'e'dor welde The tank so constructed is cylindrical in form except 'at each end on 1 the-"underside` 'lggpefflhe.longitudinal ilanges 54 are 'braced' yagainst .lateral displacing influences by strengthening ribsv 9, and the transverse "manges 6 are assisted in resisting longitudinal thrustsof the tank and ,its fluid contents 40 f .te%alparts ofthe casting. f Y.

artly, surrounding the chordal bottom tank p1ate ;3 of each unitary casting, is y an integral platform 11. f Depending yfrom the A lisides ofaid platform 11 arefs'hort and nar. l row integral side sills.12 and -from the end thereof a narrowend sill13. After extend-l i ingrearwardly for a material distance, the

Iside sills 12.`oonverge inwardly until they 'li'merge withtheweb 18 of .an integral. bol- "sterll, after which they continue in the'plane `l.they 'originally .occupied at the sides ofl the gplatforn'r -11. rv Inl the acutev angles, existing 4t tlleintersection of thebolster web 18 and l he inwardly inclinedy portionsvof the side sills 12, are formed, push pole pockets 15.

Disposed parallel to and at equal distances :fi'from 1 the longitudinal median line. of the car, are integraldraft sills 16 of angular l(l0 shaped `.cross Sieoi iejn, 'y 4Said draft sills. 16

. .extend from the point of intersection of the segment-shaped' wall'v 8 with the .arcuated flange 7 Aforwardly'to the endvsill 13' and .intersect the web-of bolster 14;. l EndQpor! tlons of car underframes are commonly.;

'the function of diagonal braces.

-I chlordal tank bottom plate 3 of its respec- The inner end ofthe tank bottom plate 3- 1 115 v".inclines downwardly and rearward all 8. ,Hene, the tank of the car comprises L .there are many types in .this purpose.

i of saidv bolsterfller 22 and, center pli'i'o .by reinforcing `ribs 10, all theribs being in- .by ruiming boards 2 6, located on eachl'dn ,unitary casting com rising a body vbolstelgaj from the intersection of the end sills an .sidesills at the outer corners thereof to stantially the joining' point of the bolster@rv and inner ends of the draft sills. In .thegm present structure the platform 11- perforllfv` 11 The end sill 13 is interrupted midway iu; length where it unites with an integrali. l n hollow buffer block 17, which is anfalogou'sjfiliV *to and performs the same function asjthei' well-known striking casting. I f

Each half of the end sill slopesfrener wardly from the outer face of buffer bloei 17 to the side sills 12, thereby, lea.ving-angl,y 80 lar spaces between a pair or a series of pled cars, whereby ample clearance! n. aiorded when 'said carsj round a curve. l.l

The outer ends 'of fthe draft sills the bu'er block 17, the latter project/ingratoy and occupying f' the intervening tween said sills. Buer block 17 is ofafglllk stantially inverted U-shalped v'ertical-f."erwl section, and in 'horizhonta andlongitndi'nnl vertical section lits walls vare ofangular mation. The uninclosed side'gjat of buffer block `17, ,is'adaptedf-:to by a carry iron, `not shown, but;

*menubar Integral bolster 14 comprises la" strengthening ribs 19, a'bottom the platformv 11 acting as a top .ilangeflfdi bearings 21, a bolster filler 22,and ya bolster center 'plate Through .the

extends a vertical opening-24j@ the tion of the customary king .boltyandn is vbolster web 18 are apertures 25' for'tboQP'Ql-ein sageof train-pipes. y

The unitary end' castingsare of the tank, the "attachment of the'latkr to the former 'being accomplished ,threudxA r .2.In1 tankcar, aunitary -prising a bolster, a bottom end plate offa tank integral with vthe bolster and eidcendin? y` horizontally and oblique'ly upwardly .beyon and around theaend of the tank; l 4. i

` 3,' In a tank car, as an end lconstruction,-l;

man en@ pla@ @ming al mi@ f i kf afvertlcl Hang'e4 adapte to ixsbeaqm 'enigma mth@ had of @will unitary "end castin ming ortion of th'ereof, unitary end `castings 'adaptedtqo a ;thefunde d"v entreno said ta cnpysaid segmentally'recessedend port 6.` In-'a "tan vescombinatiQI! of; a.. l.'of'said tank and support the'tankvw "row comprisin -curvedmetal ottom sheet ot less length thanY connect 'thev endfj ide 'plate of 1 the bottom' end plate with which said iiange -Said tank. L

and a, siaejieagaiiainai" aange is integral.

j 4,111 a ank ai- ,ii a(mattina-,ion` of a tank, 'supporting unitary end castings :forming the entire bottom portion of the endsjof the tank each'forminga portion'of a bottom tank" plate, a1p1atform, a body bolster, a bolster filler, an end sill and draft sills, said unitary castings bem connected in the un der end ortions ofsald tank to secure a low center o gravity to said'tank car;

5;In a "tank car, the combination of a tank comprising cylindrical sheet metal plates, `a bottom .plate ofulesslength than ingse'ach camp i saidvtank, upporting unitary end castg anextension of said bota" higher plane, Said hn'drical "sheet' metal torn sheet of less length than said 'tank,"a 1ff1d unitary endcastings forming end extensions of said -bottom sheet, said castingsbeing adapted to serve as supporting means for yarl, tl1e combination of a tank 7. VIn a tank plates, tank heads,

a curved said tank, and supportingunitary end castings connected to andforming extensions of said bottom sheet in a higher plane than the middle portion ofsaid bottom sheet, thereby producing in said tank car a low center of gravity, said unitary end castings being adapted to eii'ec't the closure of the` under end portion of said tank and said castings each comprising aplatform. t v

. In a tank car, the combination of a tank comprising sheet metal plates, sheet' metal tank heads, acurved metal bottom sheet 'of less length 'than said tankand' cast plates closing the gaps between the ends of the said bottom sheet andsaid tank heads, said` cast bottom tankplates occupying a horizontal plane of greater altitude thanthe y adapted i ,y Psaid tank witL center' o fgray 9. In' aftankf tahkeomprsingap e .s metal plates, flanged s h t metal ta'll'khead partly circular @and ASegmentally cntWfy'i e the\bottom, a curvefdottomsheet lapping "f" all but the end plates, bottom tank p 1ate sj .A constituting integral parts of supporting,- unitary end castings, and having upwardly K extending flanges and an arcuated iange forjfjthe attachment of the sheet metal elements, said bottom tank plates lying'` in a horizontal plane substantially in coincidence fwitli 'the l Achord of the absent `segmentofV said;

heads. l I 1 rjlf 1 0.In a tank car, the combination; 44 `partly cylindricalV tank whichil'lllillsV ents onthe under endilportio lindrlcal se said tanky caracquires a low centeno "ity, said unitary end castings closing op "rings iny said segmentally recessed portio` 11. In a tank'car, the combination *o partly cylindrical tank which isv partly co posed of sheet metal plates, unitary endjca ings constituting parts of said tank and ocf cupying segmentally recessed end portions` thereof, eachof said unitary end. castings having a downwardly and inwardly inc ined@ segment shaped Wall merging with'ja transverse arcuated lhnge, longitudinal and trans, Verse upstanding ianges ontl1e horiz'o t portion of" said bottom tank platesa` s flangesl servin as attachment vmeans/Q sheet metal tan plates anda platform;

, runningfboards connecting the p1 atfor lh witness whereof I have hereunto set my TE' hand in the l`presenceof two witnesses thi k18th day of ovember, H213;u; g,: HARRYYE. man sofngi-. y

. YI-Inifim? F. Trianon', FRED A. Herminia.;

comprising a horizontal bottom tank late 

